Lightning Fast Spider

25

Collected 48 vanishing stars

There are essentially 49 of these stars in the game and you will obtain the achievement during the Laboratory levels. They also count towards your overall star count. There is a timer on them and you must grab them before they vanish. If they vanish, hit the retry button at the top near where it says menu.

Note: This achievement is related to the stars individually. They are not cumulative. You cannot just keep replaying a level and grabbing the same stars.